How to Say "they search" in Spanish
The Spanish word for “they search” is “busquen” — A1 level. This is a very common word in everyday Spanish.

Examples
El profesor quiere que los estudiantes busquen información en la biblioteca.
The professor wants the students to look for information in the library.
¡Busquen las llaves antes de que se haga tarde!
Look for the keys before it gets late! (Formal command to a group)
Es posible que ellos busquen una solución diferente.
It is possible that they are looking for a different solution.
The Subjunctive Form
‘Busquen’ is the special verb form (present subjunctive) used when talking about wishes, emotions, or doubt related to 'ellos' (they) or 'ustedes' (formal you all). It expresses uncertainty or influence.
The Formal Command
This form is also used to give a formal command to a group of people ('ustedes'): '¡Busquen sus asientos!' (Look for your seats!).
The C-to-QU Change
Because the infinitive is 'buscar' (ending in -car), the 'c' changes to 'qu' before the letter 'e' (as in 'busquen'). This change keeps the hard 'k' sound in the word.
Confusing Subjunctive and Indicative
Mistake: “Es probable que ellos *buscan* la solución.”
Correction: Es probable que ellos *busquen* la solución. (The word 'probable' forces the special subjunctive form.)
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